US8794232B2 - Disposable monodose inhaler for powdered medicaments - Google Patents

Disposable monodose inhaler for powdered medicaments Download PDF

Info

Publication number
US8794232B2
US8794232B2 US11/574,868 US57486807A US8794232B2 US 8794232 B2 US8794232 B2 US 8794232B2 US 57486807 A US57486807 A US 57486807A US 8794232 B2 US8794232 B2 US 8794232B2
Authority
US
United States
Prior art keywords
portion
inhaler according
duct
inhaler
secondary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US11/574,868
Other versions
US20070215151A1 (en
Inventor
Giampiero Cossi
Mario La Barbera
Marco Cecchini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hollycon Italy Pte Ltd- Srl
Original Assignee
Giampiero Cossi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giampiero Cossi filed Critical Giampiero Cossi
Priority to PCT/IT2004/000501 priority Critical patent/WO2006030459A1/en
Assigned to COSSI, GIAMPIERO reassignment COSSI, GIAMPIERO ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARBERA, MARIO LA, CECCHINI, MARCO
Assigned to COSSI, GIAMPIERO reassignment COSSI, GIAMPIERO CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: COSSI, GIAMPIERO
Publication of US20070215151A1 publication Critical patent/US20070215151A1/en
Publication of US8794232B2 publication Critical patent/US8794232B2/en
Application granted granted Critical
Assigned to HOLLYCON ITALY PTE. LTD.- S.R.L. reassignment HOLLYCON ITALY PTE. LTD.- S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COSSI, GIAMPIERO
Application status is Active legal-status Critical
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0028Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0001Details of inhalators; Constructional features thereof
    • A61M15/0021Mouthpieces therefor

Abstract

A monodose inhaler for powdered medicaments consists of a hollow substantially pipe-shaped body that has a first portion (H), for housing a capsule or cartridge of powdered medicament, defined by a wall (W) in which there are formed slots (S) as air intakes to an inner region where the powder drops, and a second portion (M) connected to the first portion (H) for delivering the medicament by means of a primary stream (F) that carries the powder from the drop region along a delivery duct (D) whose end is suitable to be placed in the patient's mouth, and it further includes a secondary duct (D′) located under the delivery duct (D) and provided with its own air intake (S′) for delivering a powderless secondary stream (F′).

Description

The present invention relates to inhalers for powdered medicaments, and in particular to a disposable monodose inhaler.

It is known that the administration of medicaments in the form of powders to be inhaled is an effective and non-invasive manner to provide a patient with the drug he requires. To this purpose, several devices, generally in the form of reusable multidose inhalers, have been designed to administer powdered medicaments.

This type of inhaler, however, has various drawbacks: a rather high cost; a significant complexity that makes its use rather difficult, in particular for elderly patients; a great difficulty in maintaining it in a satisfactory hygienic state over time; the risk that the powdered medicament is not properly delivered due to thickening or formation of a film caused by humidity or by other factors; the fact that usually most of the medicament does not reach the patient's lungs because it is deposited on the walls of mouth and throat.

In an attempt to overcome these drawbacks there was developed a monodose inhaler, disclosed in U.S. Pat. No. 5,669,378, that has a much simpler and cheaper structure and can therefore be used as a disposable inhaler. In this way there are no risks of poor hygiene and deterioration of the medicament, neither a significant difficulty in use.

In fact this type of inhaler essentially consists of a pipe-shaped body with a first portion, for housing a medicament-containing capsule, connected through a screen to a second portion, for delivering the powder, that the patient puts in his mouth. In order to release the powder from the capsule there is provided a button with a spike suitable to pierce the capsule placed in an adequate supporting member, a button-supporting spring being arranged between the button and the capsule-supporting member to prevent a premature piercing of the capsule.

Although this disposable monodose inhaler is a significant improvement with respect to previous multidose inhalers, yet it is also not free from drawbacks.

First of all, it does not solve the problem of the medicament being deposited in the oropharingeal cavity before reaching the lungs. As a consequence, if the patient does not receive the desired relief that he expects from the medicament, he tends to administer himself another dose prematurely with the risk of various unpleasant side effects caused by the overdose. Moreover, the medicament deposited in the oropharingeal cavity can cause some problems such as soreness, coughing, dryness and the like.

Secondly, it still requires assembling the above-mentioned three members (button, spring, capsule support) in the housing portion, which implies a certain manufacturing cost as well as the risk of a malfunction in case of defective assembly.

Therefore the object of the present invention is to provide a disposable monodose inhaler which is free from said drawbacks. This object is achieved by means of a monolithic inhaler provided with a bottom duct in the delivering portion and suitable to house an autoperforating cartridge.

The main advantage of the present inhaler is given by the presence of the secondary stream, delivered from the bottom duct, that supports and directs the primary stream, which carries the powdered medicament, so that the primary stream can climb over the patient's tongue. In this way there is prevented the excessive deposition of the medicament in the oropharingeal cavity and there is obtained a greater effectiveness of the treatment thanks to the larger amount of medicament that reaches the lungs.

A further advantage provided by the presence of the secondary stream is the better separation of the drug from the excipient (usually lactose) due to the secondary stream that hits and directs the primary stream.

Still another advantage of this inhaler is its low cost, thanks to the fact that notwithstanding the presence of the bottom duct it can still be manufactured in plastic by injection molding with a monolithic structure. Moreover, this inhaler is suitable to house an autoperforating cartridge, like the cartridge disclosed in WO 03/011708 in the name of one of the inventors, whereby the other members for capsule piercing described in the above-mentioned prior art inhaler can be dispensed with.

Further advantages and characteristics of the inhaler according to the present invention will be clear to those skilled in the art from the following detailed description of an embodiment thereof, with reference to the annexed drawings wherein:

1 a FIG. 1 is a front perspective view of the inhaler;

1 a FIG. 2 is a top plan view of the inhaler;

1 a FIG. 3 is a side view of the inhaler;

1 a FIG. 4 is a front view of the inhaler;

1 a FIG. 5 is a rear perspective view of the inhaler; and

1 a FIG. 6 is a sectional rear perspective view taken along the longitudinal midplane of the inhaler.

With reference to said figures, there is seen that an inhaler according to the present invention conventionally consists of a hollow substantially pipe-shaped body that has a first portion H, for housing the capsule or cartridge of the powdered medicament, and a second portion M, for delivering the medicament through a delivery duct D whose end is suitable to be placed in the patient's mouth.

In the wall W that defines the housing portion H there are formed one or more vertical slots S to provide air intakes to the inner region P where the powder drops. In the illustrated embodiment there are provided three slots S, namely a central slot extending through the whole height of wall W at the midplane in distal position and other two shorter slots symmetrically arranged with respect to the central slot.

The connection between the powder drop region P and the delivery duct D is achieved through a grid G sized to prevent the passage of pieces of the capsule or cartridge that should drop therefrom upon release of the powder.

The air entering through slots S forms a stream F that carries the powder from region P, through grid G, along the delivery duct D up to the patient's mouth.

The main novel aspect of the present inhaler is that it is designed to generate also a secondary, powderless, stream F′ that supports and directs the primary stream F upon inhalation.

To this purpose, in the housing portion H there is provided a second wall W′ that encloses wall W at least partially, for example along the rear half of the latter in the illustrated embodiment, and is spaced therefrom so as to obtain an interspace S′ between the two walls.

This interspace S′ continues below the powder drop region P and extends up to the end of the delivery duct D thus forming a bottom duct D′. In practice, the delivering portion M results therefore consisting of two ducts D, D′ one on top of the other separated by a horizontal baffle B.

It is therefore clear that when the patient draws in air to inhale the powder located in region P, where it was released preferably from an autoperforating cartridge as mentioned above, a portion of the air passes through slots S and forms the primary powder-carrying stream F delivered through duct D, while another portion of the air passes through interspace S′ and forms the secondary powderless stream F′ delivered through the secondary duct D′.

As previously mentioned, the secondary stream F′ supports the primary stream F and prevents the powder from depositing, also due to gravity, on the patient's tongue or on other walls of the oropharingeal cavity. This supporting and directing function is particularly important in case the patient holds the distal end of the inhaler too much inclined upwards.

This supporting effect, as well as the other effect of separation of the drug from the excipient, can be increased or decreased by changing the ratio between the cross-sections of ducts D, D′ and/or between the cross-sections of the air intakes S, S′ or other details. In other words, the two streams F, F′ can be adjusted through the design of the various parts of the inhaler in order to obtain several embodiments with different inhalation characteristics for different specific applications.

For example, the air intake S′ for the secondary stream F′ could be formed directly at the rear end of the secondary duct D′, in which case wall W′ would extend only below the powder drop region P. Also, the dividing baffle B could be U-shaped rather than plane, so that the “air cushion” formed by the secondary stream F′ partially encloses the primary stream F also on the sides.

It is clear that the above-described and illustrated embodiment of the inhaler according to the invention is just an example susceptible of various modifications. In particular, although portions H, M have been illustrated as connected at 90° it is clear that the monolithic body of the inhaler can be made also with any other angle between said portions from 0° to 90°, e.g. 45° or 60°. Moreover, the number, shape and arrangement of the air intakes to the powder drop region P can be freely changed and therefore be completely different from the above-illustrated slots S.

Claims (14)

The invention claimed is:
1. An inhaler for powdered medicaments, comprising:
a hollow substantially pipe-shaped body having a first portion for housing a capsule or cartridge of powdered medicament, defined by a first wall in which there are formed one or more primary air intakes to an inner, powder drop region where the powdered medicament drops; and
a second portion connected to said first portion for delivering the powdered medicament by means of a primary stream from said powder drop region along a delivery duct having an end forming a first part of a mouthpiece with a predetermined length, said mouthpiece being suitable for placement in a patient's mouth, said delivery duct being part of said second portion, wherein, under said delivery duct, is a secondary duct having a secondary air intake for delivering a powderless secondary stream, said secondary duct being part of said second portion and being separated from said delivery duct by means of a dividing baffle, said secondary duct having an end forming a second part of said mouthpiece with said dividing baffle which is disposed between said delivery duct and said secondary duct, said dividing baffle extending the predetermined length of the mouthpiece whereby excessive deposition of the powdered medicament to the patent's oropharingeal cavity is inhibited, and
wherein said inhaler is manufactured from plastic by injection molding with a monolithic structure.
2. The inhaler according to claim 1, wherein the first portion has a second wall that encloses at least partially the first wall and is spaced therefrom so as to obtain an interspace that extends below the powder drop region and acts as the secondary air intake for the secondary duct.
3. The inhaler according to claim 2, wherein the primary air intakes to the powder drop region are three through slots.
4. The inhaler according to claim 2, wherein a grid is arranged between the powder drop region and the delivery duct.
5. The inhaler according to claim 2, wherein the first portion and the second portion of the body are connected at 90°.
6. The inhaler according to claim 1 wherein the primary air intakes to the powder drop region are three through slots.
7. The inhaler according to claim 6, wherein the three through slots are a central slot extending the entire height of the wall at a midplane in a distal position and other two slots, which are shorter than the central slot, are symmetrically arranged with respect to the central slot.
8. The inhaler according to claim 7, wherein a grid is arranged between the powder drop region and the delivery duct.
9. The inhaler according to claim 7, wherein the first portion and the second portion of the body are connected at 90°.
10. The inhaler according to claim 6, wherein a grid is arranged between the powder drop region and the delivery duct.
11. The inhaler according to claim 6, wherein the first portion and the second portion of the body are connected at 90°.
12. The inhaler according to claim 1, wherein a grid is arranged between the powder drop region and the delivery duct.
13. The inhaler according to claim 12, wherein the first portion and the second portion of the body are connected at 90°.
14. The inhaler according to claim 1, wherein the first portion and the second portion of the body are connected at 90°.
US11/574,868 2004-09-16 2004-09-16 Disposable monodose inhaler for powdered medicaments Active 2029-04-30 US8794232B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2004/000501 WO2006030459A1 (en) 2004-09-16 2004-09-16 Disposable monodose inhaler for powdered medicaments

Publications (2)

Publication Number Publication Date
US20070215151A1 US20070215151A1 (en) 2007-09-20
US8794232B2 true US8794232B2 (en) 2014-08-05

Family

ID=34959068

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/574,868 Active 2029-04-30 US8794232B2 (en) 2004-09-16 2004-09-16 Disposable monodose inhaler for powdered medicaments

Country Status (10)

Country Link
US (1) US8794232B2 (en)
EP (1) EP1799289B1 (en)
CN (1) CN100522274C (en)
AT (1) AT555823T (en)
DK (1) DK1799289T3 (en)
ES (1) ES2382550T3 (en)
MX (1) MX2007003046A (en)
PL (1) PL1799289T3 (en)
PT (1) PT1799289E (en)
WO (1) WO2006030459A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0602897D0 (en) * 2006-02-13 2006-03-22 Jagotec Ag Improvements In Or Relating To Dry Powder Inhaler Devices
GB0611656D0 (en) * 2006-06-13 2006-07-19 Cambridge Consultants Dry powder inhalers
GB0611659D0 (en) * 2006-06-13 2006-07-19 Cambridge Consultants Dry powder inhalers
GB0919465D0 (en) * 2009-11-06 2009-12-23 Norton Healthcare Ltd Airflow adaptor for a breath-actuated dry powder inhaler
IT201600093878A1 (en) * 2016-09-19 2018-03-19 Hollycon Italy Pte Ltd S R L Single-dose inhalers to lose powdered medicines

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994421A (en) * 1975-09-29 1976-11-30 American Cyanamid Company Unitary therapeutic aerosol dispenser
US4648393A (en) * 1984-11-02 1987-03-10 Ackrad Laboratories, Inc. Breath activated medication spray
US4846168A (en) * 1986-12-05 1989-07-11 Mect Corporation Inhaler
US5002048A (en) * 1989-12-12 1991-03-26 Makiej Jr Walter J Inhalation device utilizing two or more aerosol containers
US5113855A (en) * 1990-02-14 1992-05-19 Newhouse Michael T Powder inhaler
US5161524A (en) * 1991-08-02 1992-11-10 Glaxo Inc. Dosage inhalator with air flow velocity regulating means
US5224472A (en) * 1990-02-09 1993-07-06 Solange Quenderff Inhalation device
US5239993A (en) * 1992-08-26 1993-08-31 Glaxo Inc. Dosage inhalator providing optimized compound inhalation trajectory
US5301666A (en) 1991-12-14 1994-04-12 Asta Medica Aktiengesellschaft Powder inhaler
US5435297A (en) 1991-08-29 1995-07-25 Christoph Klein Medical device for inhaling metered aerosols
US5524613A (en) * 1993-08-25 1996-06-11 Habley Medical Technology Corporation Controlled multi-pharmaceutical inhaler
US5669378A (en) 1995-12-21 1997-09-23 Pera; Ivo Inhaling device
US5823183A (en) * 1995-08-02 1998-10-20 Innovative Devices Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of medicament
US6089227A (en) * 1995-06-21 2000-07-18 Microdrug Ag Device for an inhaler
US6116237A (en) * 1996-04-29 2000-09-12 Dura Pharmaceuticals, Inc. Methods of dry powder inhalation
US6397840B1 (en) * 1998-11-05 2002-06-04 Delsys Pharmaceutical Corporation Dry powder dispensing device
US20030079743A1 (en) * 2001-10-30 2003-05-01 Genova Perry A. Breath actuated dry powder inhaler
US6615826B1 (en) * 1999-02-26 2003-09-09 3M Innovative Properties Company Slow spray metered dose inhaler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPG20010036A1 (en) 2001-07-24 2003-01-24 Marco Cecchini Self-drilling cartridge for dispensing of dry powder inhalation

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994421A (en) * 1975-09-29 1976-11-30 American Cyanamid Company Unitary therapeutic aerosol dispenser
US4648393A (en) * 1984-11-02 1987-03-10 Ackrad Laboratories, Inc. Breath activated medication spray
US4846168A (en) * 1986-12-05 1989-07-11 Mect Corporation Inhaler
US5002048A (en) * 1989-12-12 1991-03-26 Makiej Jr Walter J Inhalation device utilizing two or more aerosol containers
US5224472A (en) * 1990-02-09 1993-07-06 Solange Quenderff Inhalation device
US5113855A (en) * 1990-02-14 1992-05-19 Newhouse Michael T Powder inhaler
US5161524A (en) * 1991-08-02 1992-11-10 Glaxo Inc. Dosage inhalator with air flow velocity regulating means
US5435297A (en) 1991-08-29 1995-07-25 Christoph Klein Medical device for inhaling metered aerosols
US5301666A (en) 1991-12-14 1994-04-12 Asta Medica Aktiengesellschaft Powder inhaler
US5239993A (en) * 1992-08-26 1993-08-31 Glaxo Inc. Dosage inhalator providing optimized compound inhalation trajectory
US5524613A (en) * 1993-08-25 1996-06-11 Habley Medical Technology Corporation Controlled multi-pharmaceutical inhaler
US6089227A (en) * 1995-06-21 2000-07-18 Microdrug Ag Device for an inhaler
US5823183A (en) * 1995-08-02 1998-10-20 Innovative Devices Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of medicament
US5669378A (en) 1995-12-21 1997-09-23 Pera; Ivo Inhaling device
US6116237A (en) * 1996-04-29 2000-09-12 Dura Pharmaceuticals, Inc. Methods of dry powder inhalation
US6397840B1 (en) * 1998-11-05 2002-06-04 Delsys Pharmaceutical Corporation Dry powder dispensing device
US6615826B1 (en) * 1999-02-26 2003-09-09 3M Innovative Properties Company Slow spray metered dose inhaler
US20030079743A1 (en) * 2001-10-30 2003-05-01 Genova Perry A. Breath actuated dry powder inhaler

Also Published As

Publication number Publication date
ES2382550T3 (en) 2012-06-11
EP1799289A1 (en) 2007-06-27
WO2006030459A1 (en) 2006-03-23
CN100522274C (en) 2009-08-05
MX2007003046A (en) 2007-08-02
AT555823T (en) 2012-05-15
PL1799289T3 (en) 2012-10-31
PT1799289E (en) 2012-06-01
EP1799289B1 (en) 2012-05-02
DK1799289T3 (en) 2012-05-29
CN101022846A (en) 2007-08-22
US20070215151A1 (en) 2007-09-20

Similar Documents

Publication Publication Date Title
US6116237A (en) Methods of dry powder inhalation
US5458135A (en) Method and device for delivering aerosolized medicaments
US7089934B2 (en) Delivery of oral drugs
CA2652283C (en) Dry-powder inhaler for pulmonary or nasal delivery
US5320094A (en) Method of administering insulin
US6681767B1 (en) Method and device for delivering aerosolized medicaments
EP0938907B1 (en) Inhalation device
US6055980A (en) Dry powder inhaler
AU739002B2 (en) Aerosol medication delivery apparatus and system
US5284133A (en) Inhalation device with a dose-timer, an actuator mechanism, and patient compliance monitoring means
AU718682B2 (en) Inhaler for multiple dosed administration of a pharmacological dry powder
US5577497A (en) Dry powder inhaler
JP4959826B2 (en) Aerosol drug delivery device
US5752502A (en) General purpose aerosol inhalation apparatus
US5239991A (en) Disposable powder medicament inhalation device with peel-off cover
DE60208891T2 (en) Inhaler
US7032593B2 (en) Inhalation device and method
EP1464356B1 (en) Inhalator
EP0805696B1 (en) An inhaler
US6612303B1 (en) Nebulizer apparatus and method
JP3980653B2 (en) Drug single dose aspirator II
US8454939B2 (en) Low dose pharmaceutical powders for inhalation
US5415162A (en) Multi-dose dry powder inhalation device
US6102036A (en) Breath activated inhaler
EP0451745A1 (en) Device for the administration of powdered medicinal substances

Legal Events

Date Code Title Description
AS Assignment

Owner name: COSSI, GIAMPIERO, ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARBERA, MARIO LA;CECCHINI, MARCO;REEL/FRAME:019070/0222

Effective date: 20070305

AS Assignment

Owner name: COSSI, GIAMPIERO, ITALY

Free format text: CHANGE OF NAME;ASSIGNOR:COSSI, GIAMPIERO;REEL/FRAME:019228/0552

Effective date: 20070402

STCF Information on status: patent grant

Free format text: PATENTED CASE

CC Certificate of correction
AS Assignment

Owner name: HOLLYCON ITALY PTE. LTD.- S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COSSI, GIAMPIERO;REEL/FRAME:036830/0144

Effective date: 20150716

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551)

Year of fee payment: 4